AKSI00USA Site Information Form (site log) NOAA-National Geodetic Survey See Instructions at: https://files.igs.org/pub/station/general/sitelog_instr.txt 0. Form Prepared by (full name) : Francine Coloma Date Prepared : 2023-12-14 Report Type : UPDATE If Update: Previous Site Log : aksi_20220802.log Modified/Added Sections : 3.7, 3.8 1. Site Identification of the GNSS Monument Site Name : Sitka Four Character ID : AKSI Monument Inscription : IERS DOMES Number : (A9) CDP Number : (A4) Monument Description : STEEL MAST Height of the Monument : (m) Monument Foundation : ROOF Foundation Depth : (m) Marker Description : (CHISELLED CROSS/DIVOT/BRASS NAIL/etc) Date Installed : 2016-11-16T00:00Z Geologic Characteristic : (BEDROCK/CLAY/CONGLOMERATE/GRAVEL/SAND/etc) Bedrock Type : (IGNEOUS/METAMORPHIC/SEDIMENTARY) Bedrock Condition : (FRESH/JOINTED/WEATHERED) Fracture Spacing : (1-10 cm/11-50 cm/51-200 cm/over 200 cm) Fault zones nearby : Distance/activity : (multiple lines) Additional Information : (multiple lines) 2. Site Location Information City or Town : Sitka State or Province : Alaska Country : United States of America (the) Tectonic Plate : North American Approximate Position (ITRF) X coordinate (m) : -2473423.186 Y coordinate (m) : -2444327.704 Z coordinate (m) : 5328878.393 Latitude (N is +) : +570255.90 Longitude (E is +) : -1352020.33 Elevation (m,ellips.) : 19.9 Additional Information : ARP IGS08 POSITION (EPOCH 2005.00) : Computed in Mar 2018 using 29 days of data. 3. GNSS Receiver Information 3.1 Receiver Type : SEPT POLARX4 Satellite System : GPS+GLO+GAL+BDS Serial Number : 3001147 Firmware Version : 2.9.6 Elevation Cutoff Setting : 0 deg Date Installed : 2016-11-16T00:00Z Date Removed : 2019-10-21T22:30Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Case s/n is 3001075 : US Commerce CDtag #0004085078 : 2019-OCT-21 new receiver installed 3.2 Receiver Type : SEPT POLARX4 Satellite System : GPS+GLO+GAL+BDS Serial Number : 3002118 Firmware Version : 2.9.6 Elevation Cutoff Setting : 0 deg Date Installed : 2019-10-21T22:30Z Date Removed : 2021-08-30T02:00Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Receiver replaced 3.3 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS Serial Number : 6027R40022 Firmware Version : 6.10/5.50 Elevation Cutoff Setting : 0 deg Date Installed : 2021-08-30T03:21Z Date Removed : 2021-10-01T19:30Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware update 3.4 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS Serial Number : 6027R40022 Firmware Version : 6.12/5.52 Elevation Cutoff Setting : 0 deg Date Installed : 2021-10-01T19:39Z Date Removed : 2022-01-10T17:50Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Firmware downgraded 3.5 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS Serial Number : 6027R40022 Firmware Version : 6.05/5.45 Elevation Cutoff Setting : 0 deg Date Installed : 2022-01-10T18:18Z Date Removed : 2022-07-10T15:25Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.6 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS Serial Number : 6027R40022 Firmware Version : 6.14 Elevation Cutoff Setting : 0 deg Date Installed : 2022-07-10T15:25Z Date Removed : 2022-08-02T14:36Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : new firmware 3.7 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS Serial Number : 6027R40022 Firmware Version : 6.14 Elevation Cutoff Setting : 0 deg Date Installed : 2022-08-02T14:40Z Date Removed : 2023-12-14T17:19Z Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : Updated receiver option to have : HTTPS+Cert capability : 2023-DEC-14 updated firmware 3.8 Receiver Type : TRIMBLE ALLOY Satellite System : GPS+GLO+GAL+BDS Serial Number : 6027R40022 Firmware Version : 6.21/5.61 Elevation Cutoff Setting : 0 deg Date Installed : 2023-12-14T17:20Z Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 3.x Receiver Type : (A20, from rcvr_ant.tab ; see instructions) Satellite System : (GPS+GLO+GAL+BDS+QZSS+SBAS) Serial Number : (A20, but note the first A5 is used in SINEX) Firmware Version : (A11) Elevation Cutoff Setting : (deg) Date Installed : (CCYY-MM-DDThh:mmZ) Date Removed : (CCYY-MM-DDThh:mmZ) Temperature Stabiliz. : (none or tolerance in degrees C) Additional Information : (multiple lines) 4. GNSS Antenna Information 4.1 Antenna Type : SEPCHOKE_MC SPKE Serial Number : 5255 Antenna Reference Point : BAM Marker->ARP Up Ecc. (m) : 0.0000 Marker->ARP North Ecc(m) : 0.0000 Marker->ARP East Ecc(m) : 0.0000 Alignment from True N : 0 deg Antenna Radome Type : SPKE Radome Serial Number : Antenna Cable Type : LMR-400 in Liquidatie conduit Antenna Cable Length : 10 m Date Installed : 2016-11-16T00:00Z Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : GPS cable it connected to a LCOM AL-6-NFNFBW-9 : and a RF-58 Pigtail to the receiver : SECO Mount - model 2072-30 : 2019-JUN-12 antenna removed for testing : 2019-JUN-14 antenna reinstalled, aligned to N 4.x Antenna Type : (A20, from rcvr_ant.tab ; see instructions) Serial Number : (A*, but note the first A5 is used in SINEX) Antenna Reference Point : (BPA/BCR/XXX from antenna.gra ; see instr.) Marker->ARP Up Ecc. (m) : (F8.4) Marker->ARP North Ecc(m) : (F8.4) Marker->ARP East Ecc(m) : (F8.4) Alignment from True N : (deg; + is clockwise/east) Antenna Radome Type : (A4 from rcvr_ant.tab ; see instructions) Radome Serial Number : Antenna Cable Type : (vendor & type number) Antenna Cable Length : (m) Date Installed : (CCYY-MM-DDThh:mmZ) Date Removed : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 5. Surveyed Local Ties 5.x Tied Marker Name : Tied Marker Usage : (SLR/VLBI/LOCAL CONTROL/FOOTPRINT/etc) Tied Marker CDP Number : (A4) Tied Marker DOMES Number : (A9) Differential Components from GNSS Marker to the tied monument (ITRS) dx (m) : (m) dy (m) : (m) dz (m) : (m) Accuracy (mm) : (mm) Survey method : (GPS CAMPAIGN/TRILATERATION/TRIANGULATION/etc) Date Measured : (CCYY-MM-DDThh:mmZ) Additional Information : (multiple lines) 6. Frequency Standard 6.1 Standard Type : (INTERNAL or EXTERNAL H-MASER/CESIUM/etc) Input Frequency : (if external) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 6.x Standard Type : (INTERNAL or EXTERNAL H-MASER/CESIUM/etc) Input Frequency : (if external) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 7. Collocation Information 7.1 Instrumentation Type : (GPS/GLONASS/DORIS/PRARE/SLR/VLBI/TIME/etc) Status : (PERMANENT/MOBILE) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 7.x Instrumentation Type : (GPS/GLONASS/DORIS/PRARE/SLR/VLBI/TIME/etc) Status : (PERMANENT/MOBILE) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8. Meteorological Instrumentation 8.1.1 Humidity Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy (% rel h) : (% rel h) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.1.x Humidity Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy (% rel h) : (% rel h) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.2.1 Pressure Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (hPa) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.2.x Pressure Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (hPa) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.3.1 Temp. Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (deg C) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.3.x Temp. Sensor Model : Manufacturer : Serial Number : Data Sampling Interval : (sec) Accuracy : (deg C) Aspiration : (UNASPIRATED/NATURAL/FAN/etc) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.4.1 Water Vapor Radiometer : Manufacturer : Serial Number : Distance to Antenna : (m) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.4.x Water Vapor Radiometer : Manufacturer : Serial Number : Distance to Antenna : (m) Height Diff to Ant : (m) Calibration date : (CCYY-MM-DD) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Notes : (multiple lines) 8.5.1 Other Instrumentation : (multiple lines) 8.5.x Other Instrumentation : (multiple lines) 9. Local Ongoing Conditions Possibly Affecting Computed Position 9.1.1 Radio Interferences : (TV/CELL PHONE ANTENNA/RADAR/etc) Observed Degradations : (SN RATIO/DATA GAPS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.1.x Radio Interferences : (TV/CELL PHONE ANTENNA/RADAR/etc) Observed Degradations : (SN RATIO/DATA GAPS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.2.1 Multipath Sources : (METAL ROOF/DOME/VLBI ANTENNA/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.2.x Multipath Sources : (METAL ROOF/DOME/VLBI ANTENNA/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.3.1 Signal Obstructions : (TREES/BUILDLINGS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 9.3.x Signal Obstructions : (TREES/BUILDLINGS/etc) Effective Dates : (CCYY-MM-DD/CCYY-MM-DD) Additional Information : (multiple lines) 10. Local Episodic Effects Possibly Affecting Data Quality 10.1 Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 10.x Date : (CCYY-MM-DD/CCYY-MM-DD) Event : (TREE CLEARING/CONSTRUCTION/etc) 11. On-Site, Point of Contact Agency Information Agency : City and Borough of Sitka Preferred Abbreviation : SITKA Mailing Address : 100 Lincoln Street; Sitka, AK 99835 Primary Contact Contact Name : Grant Turner Telephone (primary) : 907-747-1844 Telephone (secondary) : Fax : 907-747-7403 E-mail : grant.turner@cityofsitka.org Secondary Contact Contact Name : Sara Peterson Telephone (primary) : 907-747-1811 Telephone (secondary) : 907-747-1808 Fax : E-mail : sara.peterson@cityofsitka.org Additional Information : (multiple lines) 12. Responsible Agency (if different from 11.) Agency : NOAA-National Geodetic Survey Preferred Abbreviation : NOAA-NGS Mailing Address : 1315 East-West Hwy., cu.8825 : Silver Spring, MD 20910, USA Primary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : ngs.corscollector@noaa.gov Secondary Contact Contact Name : Telephone (primary) : Telephone (secondary) : Fax : E-mail : ngs.corscollector@noaa.gov Additional Information : (multiple lines) 13. More Information Primary Data Center : https://geodesy.noaa.gov/corsdata/ Secondary Data Center : URL for More Information : https://geodesy.noaa.gov/CORS/ Hardcopy on File Site Map : (Y or URL) Site Diagram : (Y or URL) Horizon Mask : (Y or URL) Monument Description : (Y or URL) Site Pictures : (Y or URL) Additional Information : (multiple lines) Antenna Graphics with Dimensions https://files.igs.org/pub/station/general/antenna.gra